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1SDX254850R1 ABB EPX-XT5N-E2-4003 400A 3-Pole 36kA Ekip Dip LSI MCCB
ABB EPX-XT5N-E2-4003 is a 400 A three-pole moulded case circuit breaker from the Protecta Power Devices range, featuring a 36 kA short-circuit breaking capacity and an Ekip Dip LSI electronic trip unit providing long-time, short-time and instantaneous protection for low-voltage electrical distribution systems.
£1,750.53
Why Choose the ABB EPX-XT5N-E2-4003 400A 3-Pole MCCB?
The ABB EPX-XT5N-E2-4003 is a high-performance 400 A three-pole moulded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection in low-voltage electrical distribution systems. Part of the ABB Protecta Power Devices range, this circuit breaker incorporates the proven ABB SACE Tmax XT5N400 platform, delivering dependable electrical protection for commercial buildings, industrial facilities and electrical infrastructure.
Equipped with an ABB Ekip Dip LSI electronic trip unit, the EPX-XT5N-E2-4003 provides three essential protection functions: long-time overload protection (L), short-time short-circuit protection (S) and instantaneous short-circuit protection (I). Its configurable electronic protection characteristics support effective coordination between protective devices, helping safeguard distribution cables, electrical switchgear and connected equipment against abnormal current conditions.
With a 400 A rated current, three-pole construction and 36 kA short-circuit breaking capacity, this MCCB is suitable for demanding three-phase electrical distribution applications. Its robust XT5N400 frame supports integration into compatible ABB Protecta Power distribution assemblies, industrial switchboards and electrical distribution panels requiring advanced electronic circuit protection.
Key Advantages
- 400 A rated current for high-current commercial and industrial electrical distribution circuits.
- Three-pole configuration suitable for three-phase low-voltage electrical systems.
- 36 kA short-circuit breaking capacity provides dependable fault interruption.
- ABB Ekip Dip LSI electronic trip unit delivers comprehensive overload and short-circuit protection.
- Long-time overload protection (L) helps safeguard cables and connected equipment against sustained excessive current.
- Short-time protection (S) supports delayed short-circuit fault clearance and coordination with downstream protective devices.
- Instantaneous protection (I) provides rapid interruption of severe short-circuit faults.
- Configurable electronic trip settings support installation-specific protection requirements.
- ABB Tmax XT5N400 frame offers robust construction for demanding electrical distribution applications.
- Designed for integration into compatible ABB Protecta Power distribution systems.
- Suitable for commercial buildings, manufacturing facilities and industrial electrical infrastructure.
Key Features
- ABB Protecta Power Devices product range.
- ABB SACE Tmax XT5N400 moulded case circuit breaker platform.
- 400 A rated electronic trip unit current.
- Three-pole (3P) construction.
- 36 kA rated short-circuit breaking capacity.
- Ekip Dip LSI electronic protection unit.
- Long-time (L) protection against sustained overload conditions.
- Short-time (S) protection against short-circuit faults with intentional time-delay functionality.
- Instantaneous (I) protection for rapid interruption of high-current faults.
- Adjustable electronic protection characteristics for circuit coordination.
- XT5N400 frame with a maximum frame rating of 400 A.
- 140 mm three-pole frame width for integration into suitable distribution assemblies.
- Three-pole switching and protection for three-phase electrical circuits.
- Manual operating mechanism with trip indication and reset functionality.
- Designed for use in compatible low-voltage electrical distribution assemblies.
- Compatible with appropriately selected ABB Tmax XT5 installation accessories.
Advanced LSI Electronic Protection for Industrial Electrical Distribution
Moulded case circuit breakers such as the ABB EPX-XT5N-E2-4003 protect electrical installations by automatically interrupting current when overload or short-circuit faults occur. Its Ekip Dip LSI electronic trip unit provides long-time protection against sustained overloads, short-time protection for coordinated fault clearance and instantaneous protection for rapid interruption of severe short circuits. These functions help safeguard electrical distribution cables, connected equipment and downstream circuits while supporting effective coordination with other protective devices.
The ABB SACE Tmax XT5 circuit breaker family is designed for dependable performance in modern low-voltage electrical distribution systems. Its robust construction, electronic protection technology and compatibility with suitable ABB accessories support integration into commercial and industrial electrical infrastructure. The EPX-XT5N-E2-4003 is particularly suited to installations requiring 400 A three-pole circuit protection and a 36 kA short-circuit breaking rating, subject to verification of operating voltage, prospective fault current, cable characteristics and protection coordination requirements.
Typical Applications
- Commercial and industrial electrical distribution boards.
- ABB Protecta Power distribution assemblies.
- Three-phase low-voltage electrical distribution systems.
- Low-voltage main switchboards and sub-distribution panels.
- Industrial machinery supply circuits and electrical feeders.
- Manufacturing facilities and industrial production plants.
- Building services and commercial electrical infrastructure.
- Warehouses, logistics facilities and large commercial premises.
- Electrical distribution circuits requiring configurable electronic protection.
- Industrial electrical installations requiring coordinated LSI protection.
Technical Specifications
| Product group | Protecta Power Devices |
|---|---|
| Product series | SACE Tmax XT |
| Frame designation | XT5N400 |
| ABB order code | 1SDX254850R1 |
| Corresponding ABB circuit breaker reference | 1SDA100358R1 |
| Product type | Moulded case circuit breaker (MCCB) |
| Rated current (In) | 400 A |
| Number of poles | 3 |
| Rated short-circuit breaking capacity | 36 kA |
| Trip unit | Ekip Dip LSI |
| Trip unit technology | Electronic |
| Long-time protection (L) | Adjustable overload protection |
| Short-time protection (S) | Short-circuit protection with time-delay functionality |
| Instantaneous protection (I) | Short-circuit protection without intentional delay |
| Protection functions | L, S and I |
| Frame family | XT5N400 |
| Maximum frame rating | 400 A |
| Three-pole frame width | 140 mm |
| Mounting type | Fixed mounting |
| Terminal arrangement | Front terminals |
| Operating mechanism | Manual operation |
| Application | Low-voltage three-phase electrical distribution |
| Installation | Compatible electrical distribution boards and switchgear assemblies |
| Applicable circuit breaker standard | IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB EPX-XT5N-E2-4003 used for?
The ABB EPX-XT5N-E2-4003 is a three-pole moulded case circuit breaker designed to protect low-voltage electrical distribution circuits against overloads and short circuits. It is suitable for commercial and industrial three-phase electrical distribution systems requiring electronic circuit protection.
What is the rated current of the EPX-XT5N-E2-4003?
The circuit breaker has a 400 A rated current and uses the ABB Tmax XT5N400 frame, which has a maximum frame rating of 400 A. Its Ekip Dip LSI electronic trip unit provides configurable protection characteristics for appropriately designed electrical distribution circuits.
What is the breaking capacity of this MCCB?
The EPX-XT5N-E2-4003 has a 36 kA short-circuit breaking capacity. The applicable breaking capacity must be verified against the installation's operating voltage and prospective short-circuit current before selecting the circuit breaker.
What protection does the Ekip Dip LSI electronic trip unit provide?
The ABB Ekip Dip LSI electronic trip unit provides three protection functions: long-time overload protection (L), short-time short-circuit protection (S) and instantaneous short-circuit protection (I). These functions support configurable fault protection and coordination between protective devices in electrical distribution systems.
Where is the ABB EPX-XT5N-E2-4003 typically installed?
This MCCB is typically installed in low-voltage electrical distribution boards, industrial switchboards and compatible ABB Protecta Power assemblies, where three-pole electronic circuit protection is required. Its fixed-mounted construction and front terminal connections support integration into suitable electrical distribution panels, subject to appropriate installation design.
Trusted by Electrical Engineers and Industrial Installers Worldwide
ABB SACE Tmax XT moulded case circuit breakers are engineered to deliver dependable overload and short-circuit protection in modern electrical distribution systems. The ABB EPX-XT5N-E2-4003 combines a 400 A rating, three-pole construction, 36 kA breaking capacity and advanced Ekip Dip LSI electronic protection in a robust circuit breaker suitable for commercial, industrial and infrastructure power distribution applications.
